Home / 911,639.40-1,368,690.30-532,948.20

Finding the Fourth Proportional to 911,639.40, 1,368,690.30 and 532,948.20

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Solution

The fourth proportional to 911,639.40, 1,368,690.30 and 532,948.20 is: 800,142.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,639.40 : 1,368,690.30 = 532,948.20 : x
  2. Step 2: Convert to fraction form
    911,639.40/1,368,690.30 = 532,948.20/x
  3. Step 3: Cross multiply
    911,639.40x = 1,368,690.30 × 532,948.20
  4. Step 4: Simplify right side
    911,639.40x = 729,441,031,742.46
  5. Step 5: Solve for x
    x = 729,441,031,742.46/911,639.40
  6. Step 6: Final answer
    x = 800,142.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.